IPA: /ˈɡlæd.sə.məs/
KK: /ˈɡlæd.sə.məs/
A state of being happy or joyful; a feeling of delight.
The children's gladsomeness was evident as they played in the park.
Gladsomeness is formed from "glad" (from Old English "glæd", meaning joyful or happy) and "-some" (meaning characterized by or full of), combined with the suffix "-ness" (meaning the state or quality of). The word "gladsomeness" refers to the state of being full of joy or happiness.
Think of 'glad' meaning joyful and '-some' indicating full of, along with '-ness' which signifies a state. This helps you remember that gladsomeness is the state of being full of joy.